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•.i.2 It a rues contains a aiinilLeane arouse o! nonagwow <br />inltia liquid phut (~~, >1 percent o! total casts), the syrinp ar cha <br />TED bad slay be wad for both the initial aolid/liquid sspasation and <br />eha !lnal eaxsaee liltraeion. Howwr, analysts should use ons or eha <br />oehas, not beep. <br />4.6.3 It the~raaes contains no initial liquid phase (ia 100 <br />pareant solid) os has no si~niiieant solid phase (ia 100 pareant liquid). <br />•ithss the TEDLAAE bai or the sytinie say be wad. It the aysinp is <br />wad, discard the first S al o! liquid sxprsaaed troa eha daviee. Ths <br />resiainiai aliquees ass wad !or analysis. <br />4.7 2Ni axtraetion fluid eranster devicsa auy dsvie• capable o! <br />traeu larrie-E eha axtraetion fluid into eha 21iE vlthoue ehansins the nature <br />o! the axtraetion fluid is raeoawndsd. <br />4.3 Laboratory balance - any Laboratory balance accurate Co riehla t <br />0.01 s nay be wed (all veiaht seasuressnes are to be rithin t 0.1 j). <br />S . 0 RL10EN'IS <br />S.1 Aeapnt rater - rea=ene eater !a detinad as rater in rhieh an <br />inesrtessne is net observed ae os above eha aeehod dseeetioa liadt ei the <br />analyta(s) o! inursat. Pos non-wlatile e:craetiow, ASSM lyrpe II rates <br />or equivalent Dates the deiiaition of seatent vacs. Fos wlatile <br />extraetiona, ie is reeoa~andad that rsapnc raur b• pneraesd h say of <br />the lollorit~ arehods. Eeapnt rater should be sonicosed perlodieally !or <br />ispurielea. <br />5.1.1 eaapne rater !os volatile sxerutloas say be enarated by <br />passini up rater throuih a carbon filter bed eonuinln~ about ~00 E of <br />aetivaeed carbon (Cal~oa Corp., Hleraaosb 300 or equivalent). <br />5.1.2 A rater puritieaelon syatw (Millipore Super•Q or <br />•quivalant) say also be wed to =eneraca reapnc rater !os wlatile <br />•:tractions. <br />3.1.3 Reapae rates !os wlatil• sxeractiow say also be <br />prepared by boilia~ racer !or 13 ainueea. Subaegwnely, chile sainuiain~ <br />the eater taayerature ae 90 S S'C, bubble a contaninane-free !nest ;u <br />(e. c.. nitsvpa) ehrou~t the vatsr !or 1 hour. ~ihile still hot, tranaler <br />the razes eo a nastar-south acrer-cap bottle under zero headspae• and seal <br />rich a iatlea lined sepeu, sad cap. <br />S.2 Sulfuric acid/nitric acid (60/40 vei~tte percent sixtwe) <br />H3SO4jtQi03. Cautiously mix 60 ; of eoneentrstsd sulfuric acid rith <br />40 j of eoneenesaesd nitric acid. <br />S.3 Exeraetlon fluids: <br />3.3.1 Extraction fluid •1 - this fluid is aada by addini the <br />60/40 raiSht paresne sixture o! sulfuric and nitric acids eo rsapnc vatsr <br />until the pH la 4.20 ± O.OS. The fluid is wsd to dseasains cha <br />leachability of soil lros a rice that is east o! the Mlasissippi ftivsr. <br />4 <br />